Pretty good. My first pass at this did a very similar thing where I had a script running on a raspi to change the lights. Completely fair point about wanting to extend the lights during the winter. They switch to evening mode way too early lately and I kind of wish the rules api allowed you to do date based conditionals. That said, I have to do exactly 0 maintenance on it since I got the rules configured, so overall its pretty solid.
Fab. If you're interested in collaborating, drop me a note. I wrote my current software in Scala as an experiment, but I'm unlikely to do future work in Scala. I've been meaning to rewrite sunrise in something else, and I'm open to suggestion.
